Sleep love weed. The cover art for the stoner metal pioneers’ second album, Holy Mountain, was based around a marijuana leaf. Their last album, Dopesmoker, consisted entirely of one hour-long song about smoking weed. There’s a dedicated “Cannabis use” section on their Wikipedia page. And tomorrow, Sleep are celebrating 4/20, the international stoner holiday, by releasing their first album in over a decade. Surprise!

The long-awaited follow-up to Dopesmoker (and their first new material since their 2014 Adult Swim single “The Clarity“) is called The Sciences, and the band are releasing it on Jack White’s Third Man Records. It includes a song called “Marijuanaut’s Theme,” because of course it does. Find the full tracklist and a list of Sleep’s upcoming tour dates below.